General Culture:
Easily grown in average, medium moisture, well-drained soil in full sun. Best performance occurs with consistent, regular moisture, but sharp soil drainage, particularly in winter, is also essential. Tolerates light shade. Remove spent flower spikes to encourage additional bloom. Plants may be cut back to basal growth after flowering.
Noteworthy Characteristics:
‘High Five’ is an erect, clump-forming, spiked speedwell cultivar that is noted for producing a summer-long bloom of violet-blue flowers in unusually long flower spikes atop stems towering over compact plants. Narrow, lance-shaped, toothed, deep green leaves (to 3” long) form a foliage mound to 8” tall. In late June, flowering spikes rise well above the foliage mound to 24-36” tall featuring tapered-at-the-top spike-like terminal racemes densely packed with violet-blue flowers. Flowers are attractive to bees and butterflies.
Problems:
No serious insect or disease problems. Root rot may occur in wet, poorly-drained soils.
Uses:
Rock gardens, foundations, borders and other sunny spots in the landscape.
© Missouri Botanical
Garden, 2001-2010
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